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Best Path from Centos 7?

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11 comments

  • andrew.n
    I would vote for AlmaLinux if you want to upgrade now as it is very similar to CentOS 7. You can always install CloudLinux on an existing server while keeping the data intact.
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  • jazee
    I would vote for AlmaLinux if you want to upgrade now as it is very similar to CentOS 7. You can always install CloudLinux on an existing server while keeping the data intact.

    This was my initial gut feeling but I'm sort of out of touch with Linux evolution as it pertains to Cpanel. In the end I just want the easiest most trouble-free migration. I see Cpanel fully supports AlmaLinux. So would following a set of instructions like this, theoretically be all that I need to do?
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  • andrew.n
    The first method looks good yes. In most cases this is pretty straightforward but as always having a full backup or testing this on a cloned server is much recommended. If you migrate over to a new server you can copy most of the configs including Apache, MySQL, Exim etc.. using the Transfer Tool but upgrading the OS is an easier way I believe.
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  • cPanelAnthony
    Thanks for your assistance, Andrew!
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  • jazee
    I confirmed with Cpanel, you can't go Centos 7 > AlmaLinux and you can't go Centos 7 > Centos 8 > Almalinux. You can only go Centos 7 > CloudLinux. But I don't want yet another cost layer added to my hosting getting a CloudLinux license. So only option to get to Almalinux is to start a new server with Alamalinux and install Cpanel from scratch, then migrate all the WHM/Cpanel data.
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  • andrew.n
    That is quite interesting. AlmaLinux says cPanel, Plesk, DirectAdmin all supported:
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  • jazee
    That is quite interesting. AlmaLinux says cPanel, Plesk, DirectAdmin all supported: You have to get to Centos 8 before you can get to AlmaLinux as far as in-place upgrades.
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  • andrew.n
    You are right, GitHub shows migration from EL8 to Alma 8 and actually Elevate from AlmaLinux which was recently introduced (1 month ago) supports CentOS 7 migration over to AlmaLinux 8 and that is still experimental. I'm pretty sure though that before the end of the lifecycle of CentOS 7 migration of different panels will be supported as well.
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  • cPanelAnthony
    Looks like I got here a minute too late! That is all correct; you will need to migrate to AlmaLinux from operating systems derived from EL8. Anything else is either experimental or not supported.
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  • sparek-3
    Kind of makes you wonder why a totally different Linux distribution didn't gain traction after the CentOS 8 announcement. I guess I'm just a little surprised or shocked that people didn't consider Ubuntu or some Debian derivation, but instead waited for AlmaLinux to be released. Correct me if I'm wrong, but: Ubuntu allows for in place upgrades. That means you can upgrade from Ubuntu 16.04 to Ubuntu 18.04 to Ubuntu 20.04 without having to rebuild the server. Ubuntu and Debian derivations are less reliant on backported packages. So you don't have to scour the changelogs of binary packages to see if the latest security fix has been applied to a package. The version of the binary actually upgrades. Maybe there's a specific reason that makes AlmaLinux worth the wait. To be fair, Ubuntu and Debian didn't exactly grab the bull by the horns after the CentOS 8 announcement to try and reclaim some of that market share. I have a slight concern that AlmaLinux will eventually get integrated into a licensing model with CloudLinux and then you're back to where you started. Or the funds to continue to maintain AlmaLinux will go away and some type of licensing model will be necessary. I know they've stated that they won't, but nobody can see the future, and like I said, it's a slight concern. And admittedly I took a wait and see approach and didn't really campaign one way or another. I really can't say that Ubuntu/Debian would have been a better path forward. There very well could have been obstacles with that path that would have made the transition difficult. And maybe there are people that are more knowledgeable of those obstacles and knew there would be difficulties. But like I said, I guess I'm just shocked that the industry never gave any real consideration to Ubuntu/Debian and just waited for AlmaLinux.
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  • andrew.n
    Those upgrades are not straightforward either especially if you have different softwares installed already on the server. CentOS 7 support is a long way still so those are on CentOS 7 not really worried yet for CentOS 8 there is an alternative. cPanel introduced Ubuntu support so the users has the opportunity to choose between CentOS/AlmaLinux and Ubuntu and not limited to just one option (AlmaLinux).
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